Fragrance addition method and fragrance addition device

Abstract

To suppress scattering of a fragrance added to a roll.SOLUTION: A fragrance adding method, for adding a fragrance to an inner peripheral surface of a core material in a roll 1 in a conveying path of the roll 1 in which a belt-like material is wound around the cylindrical core material, includes: an arrangement step of arranging a plurality of rolls 11 to 16 along a conveying direction, in a state in which the plurality of rolls are in contact with each other in a predetermined conveying region R, and in a posture in which respective cylinder axes are along a conveying direction, where an upstream side in the conveying direction with respect to an internal space of the downstream roll 11, which is the roll 1 located at a downstream end in the conveying direction in the conveying region among the plurality of rolls 11 to 16 communicates with an internal space of the roll 12 adjacent to an upstream side of the downstream roll 11, and an opposite side of the upstream side with respect to the internal space of the downstream roll 11 communicates with an external space; and an addition step of jetting and spraying the fragrance from a side opposite to the upstream side to an inner peripheral surface of the downstream roll 11 among the plurality of rolls 11 to 16 arranged in the arrangement step.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present invention relates to a method and apparatus for adding a flavoring to the inner peripheral surface of a core material in a roll of a strip-shaped material. [Background technology]

[0002] Scented roll products are known as rolls in which a strip-shaped material is wound around a core. For example, toilet rolls are sold in which a fragrance is added to the inner surface of a paper tube (core) around which toilet paper (material) is wound. As one technique for manufacturing rolls with added fragrance as described above, a technique has been proposed in which a fragrance is sprayed from the outside of the roll onto the inner surface of the core material of each roll that is transported sequentially at intervals, thereby scenting the roll (Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 4430362 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the method of spraying the fragrance onto the inner peripheral surface of each roll conveyed sequentially at intervals as described above, the sprayed fragrance may escape from the internal space of the core material and scatter to the outside on the opposite side from the spray source, which may result in a decrease in fragrance addition efficiency.Furthermore, the scattering of the fragrance to the outside may also cause deterioration of the production line, such as conveying equipment and sensors installed around the roll to which the fragrance is sprayed. Therefore, there is room for improvement in suppressing scattering of the fragrance added to the roll.

[0005] The present invention was invented in consideration of the above-mentioned problems, and one of its objectives is to prevent the scattering of fragrance added to the roll. However, other objectives of the present invention are not limited to this objective. The functions and effects derived from the various configurations shown in the "Mode for Carrying Out the Invention" below, which cannot be obtained with conventional technology, can also be considered as other objectives of the present invention. [Means for solving the problem]

[0006] The flavoring addition method disclosed herein comprises the following components (1) to (5). (1) A method for adding a flavoring agent to an inner surface of a core material in a roll conveyance path, the core material being a cylindrical core material having a cylindrical internal space passing therethrough and a strip-shaped material wound around a cylindrical axis of the core material, the method comprising: an arranging step of arranging the plurality of rolls in a predetermined conveying region along the conveying direction in a state where the rolls are in contact with each other and the cylindrical axes of the rolls are oriented along the conveying direction, and arranging the rolls such that the internal space of a downstream roll, which is a roll located at the downstream end in the conveying region in the conveying direction among the plurality of rolls, communicates with the internal space of the roll adjacent to the downstream roll on the upstream side of the downstream roll on the upstream side, and the side opposite to the upstream side of the internal space of the downstream roll communicates with an external space; an adding step of spraying the flavoring material onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged in the arranging step from the side opposite to the upstream side; A method for adding a fragrance. (2) the arranging step includes a pause step of temporarily stopping the conveyance of the downstream roll, and a restart step of resuming the conveyance of the downstream roll, the conveyance of which has been temporarily stopped by the pause step, and feeding the downstream roll in turn downstream of the conveying region in the conveying direction, The adding step stops spraying the flavoring material onto the downstream roll whose conveyance has been resumed by the restarting step, and sprays the flavoring material onto the inner circumferential surface of the downstream roll whose conveyance has been temporarily stopped by the pausing step. The method for adding a fragrance according to (1) above. (3) a dust collection step for absorbing the scattered fragrance from the fragrance sprayed onto the inner circumferential surface in the adding step; The method for adding a flavoring agent according to (1) or (2) above. (4) The dust collection step includes a downstream dust collection step of absorbing the fragrance that is sprayed onto the inner circumferential surface in the adding step and that has diffused between the spray source and the inner circumferential surface. The method for adding a fragrance according to (3) above. (5) The dust collection step includes an upstream dust collection step of absorbing the aromatic material that has escaped from the internal spaces of the rolls to the upstream side of the conveying region, among the aromatic material sprayed onto the inner peripheral surface in the adding step. The method for adding a flavoring agent according to (3) or (4) above.

[0007] The flavoring agent addition device disclosed herein also includes the following configurations (6) and (7). (6) A fragrance addition device that adds a fragrance to an inner peripheral surface of a core material in a transport path of a roll in which a strip-shaped material is wound around a cylindrical axis of a cylindrical core material that has a columnar internal space passing through it, an arrangement part in which a plurality of the rolls are arranged in a predetermined conveying region along the conveying direction in a state where they are in contact with each other and the cylindrical axes of the rolls are oriented along the conveying direction, and the rolls are arranged such that the internal space of a downstream roll, which is a roll located at the downstream end in the conveying region in the conveying direction among the plurality of rolls, is in communication with the internal space of the roll adjacent to the downstream roll on the upstream side of the downstream roll on the upstream side in the conveying direction, and the side opposite to the upstream side of the internal space of the downstream roll is in communication with an external space; an adding part that sprays the flavoring material from the side opposite to the upstream side onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the arranging part; A fragrance adding device characterized by: (7) the arrangement part includes a first arrangement part that arranges the plurality of rolls in one of two rows aligned in a width direction that is a direction intersecting the conveying direction in a top view, and a second arrangement part that arranges the plurality of rolls in the other of the two rows, The adding part includes a first adding part that sprays the flavoring from one side in the width direction onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the first arranging part, and a second adding part that sprays the flavoring from the other side in the width direction onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the second arranging part. 7. A flavoring device according to claim 6. [Effects of the Invention]

[0008] According to the present invention, scattering of the fragrance added to the roll can be suppressed. [Brief explanation of the drawings]

[0009] [Figure 1] FIG. 2 is a side view showing a schematic view of the flavoring device. [Figure 2] FIG. 2 is a top view showing a schematic view of the flavoring device. [Figure 3]FIG. 1 is a perspective view showing only the roll onto which the flavoring agent is applied by the flavoring agent application device. DETAILED DESCRIPTION OF THE INVENTION

[0010] Hereinafter, an embodiment of a flavoring method and a flavoring device for adding a flavor to the core material of a roll will be described. The rolls to which the flavoring is added by the flavoring method and flavoring device of this embodiment are semi-finished products before the flavoring is added (during production), and are called "workpieces" or "cylinders," and are transported on a roll production line. That is, the flavoring method is included as part of the production method carried out on the production line, and the flavoring device is attached to the production line.

[0011] In this embodiment, a fragrance addition method that is implemented as part of a toilet roll manufacturing method is exemplified, and a fragrance addition device that is incorporated into a toilet roll manufacturing line is exemplified. That is, a semi-finished toilet roll is exemplified as the roll to which the fragrance is added. The directions used in the following embodiments are defined as follows: The direction in which gravity acts is defined as downward (denoted as "D" in FIG. 1), and the direction opposite to downward is defined as upward (denoted as "U" in FIG. 1). Directions intersecting upward and downward (vertical directions) include the conveyance direction (denoted as "MD" in FIGS. 1 and 2) and the width direction (denoted as "CD" in FIG. 2). The conveyance direction is the direction in which the roll is conveyed on the production line. Upstream and downstream are defined based on the conveyance direction, and the upstream side of the conveyance direction is simply referred to as the "upstream side," and the downstream side of the conveyance direction is simply referred to as the "downstream side." As an example of the conveyance direction and width direction, in an area of ​​the production line where the roll is conveyed horizontally, the width direction is perpendicular to the conveyance direction in a top view.

[0012] I. ONE EMBODIMENT In the following embodiment, the configuration of the device system relating to the fragrance addition device is described in item [1], the configuration of the method system relating to the fragrance addition method is described in item [2], and the actions and effects of the configurations of items [1] and [2] are described in item [3].

[0013] [1. Equipment system] In this section [1], we first explain the roll configuration in subsection [1-1]. Then, we outline the main components of the production line related to the flavoring device in subsection [1-2]. After that, we provide a detailed description of the configuration of the flavoring device in subsection [1-3].

[0014] [1-1. Roll] As shown in Figure 3, in the roll 1, a strip-shaped material 1W is wound around a cylindrical core 1T that has a cylindrical internal space 1S penetrating therethrough. This material 1W is wound around the cylindrical axis 1C (axial core) of the core 1T. The internal space 1S penetrating the core 1T exists in an area occupied by a right circular cylinder that is a body of revolution centered on the cylindrical axis 1C, and the inner peripheral surface 1F of the core 1T is exposed in an area corresponding to the outer peripheral surface of this right circular cylinder. The roll 1 is transported through a manufacturing line that will be outlined below.

[0015] [1-2. Production line] As shown in FIGS. 1 and 2, the production line L of the roll 1 is provided with the following parts 1P to 6P. Previous part 1P: Part that supplies roll 1 to the flavoring device Arrangement part 2P: Part that arranges role 1 Additive part 3P: Adds fragrance to roll 1 Dust collection part 4P: Part that collects dust from fragrance Transition part 5P: A part that transfers the perfume-added roll 1 to the downstream side Post part 6P: Part that processes roll 1 from the flavoring device

[0016] Of these parts 1P to 6P, parts 2P to 5P are provided in the flavoring agent adding device, with the front part 1P being provided upstream of the flavoring agent adding device and the rear part 6P being provided downstream of the flavoring agent adding device. Figure 2 shows an example in which two production lines, a first production line L1 and a second production line L2, are arranged in parallel as the production line L. Each of these production lines L1 and L2 is provided with the above-mentioned parts 1P to 6P. In the arrangement part 2P shown in Figure 2, only the roll 1 of the second production line L2 is labeled for ease of viewing.

[0017] The front part 1P is a part that produces rolls 1 to which a fragrance is to be added by the fragrance adding device and sequentially supplies these rolls 1 to the fragrance adding device. This front part 1P is provided with a known device that produces rolls without added fragrance. In the front part 1P illustrated here, rolls 1 are successively cut out by cutting a long cylindrical semi-finished product known as a log at intervals in the axial direction, and are transported side by side at intervals along the transport direction.

[0018] 2, a conveyor 10 for transporting the rolls 1 is provided across the two production lines L1 and L2. The conveyor 10 supplies the rolls 1 in the front part 1P of the production lines L1 and L2 to the arrangement part 2P of the flavoring device. In the fragrance addition device, which is provided with an arrangement part 2P as well as an addition part 3P, a dust collection part 4P, and a transition part 5P, the fragrance is processed by the addition part 3P and the dust collection part 4P, and the roll 1 is transferred to the subsequent part 6P by the transition part 5P.

[0019] In the rear part 6P, post-processing is performed on the rolls 1 transferred from the transfer part 5P. Figures 1 and 2 show an example of the rear part 6P provided with a conveyor 60 that transports the rolls 1 to parts where the flavored rolls 1 are inspected (one example of post-processing) or packaged (another example of post-processing). The conveyor 60 shown here is provided on each of the two production lines L1 and L2. The roll 1 manufactured as described above is flavored with a flavoring agent using a flavoring agent addition device, which will be described next.

[0020] [1-3. Flavoring device] The flavoring device has at least a transition part 5P arranged downstream relative to the array part 2P. In the fragrance addition device of this embodiment, an addition part 3P is arranged downstream (opposite the upstream side) of the arrangement part 2P, and a dust collection part 4P is arranged upstream and downstream (opposite the upstream side) of the arrangement part 2P.

[0021] The array part 2P of the flavoring agent addition device exemplified here is provided with a first array part 21P incorporated in the first production line L1 and a second array part 22P incorporated in the second production line L2, corresponding to the two parallel production lines L1 and L2, as shown in Fig. 2. The addition part 3P is provided with a first addition part 31P attached to the first production line L1 and a second addition part 32P attached to the second production line L2.

[0022] Similarly, the dust collection part 4P is provided with a first dust collection part 41P attached to the first production line L1 and a second dust collection part 42P attached to the second production line L2, and the transition part 5P is provided with a first transition part 51P incorporated into the first production line L1 and a second transition part 52P incorporated into the second production line. In the following description of parts 2P to 5P provided in the flavoring agent addition device, the configurations described simply as parts 2P to 5P without the prefix "first" or "second" are configurations common to the two production lines L1 and L2 unless otherwise specified.

[0023] ==Array part== The arrangement part 2P is a part that arranges multiple rolls 1 in a predetermined conveying region R. The orientation of the multiple rolls 1 arranged by the arrangement part 2P is such that they are in contact with each other and the cylindrical axis 1C of each roll 1 is aligned along the conveying direction. Figure 2 shows an example in which six rolls 1 are arranged in series in the above-mentioned orientation in each of the arrangement parts 21P and 22P in a predetermined conveying region R. The dimension in the conveying direction in the predetermined conveying region R is expressed as "n x D," where "n" is the number of rolls 1 arranged by the arrangement part 2P ("6" in the example of Figures 1 and 2), and "D" is the dimension of each roll 1 in the direction along the cylindrical axis 1C (see Figure 3).

[0024] The more rolls 1 arranged in series in the predetermined conveying area R (six is ​​used as an example here), the more likely it is that the fragrance sprayed by the adding part 3P, which will be described in detail later, will be prevented from leaking upstream, but this requires a larger dimension in the conveying direction of the predetermined conveying area R in the production line (in other words, the degree of freedom in layout is reduced). Therefore, the number of rolls 1 arranged in series in the predetermined conveying area R is set in advance empirically or experimentally, taking into consideration both the need to prevent the fragrance from leaking upstream and the size of the space available for setting up the predetermined conveying area R.

[0025] Specifically, two production lines L1, L2 aligned in the width direction are provided in the predetermined conveying region R, and each of these production lines L1, L2 has a row in which rolls 1 are arranged in series. Of the production lines L1, L2 thus arranged in two rows aligned in the width direction in the predetermined conveying region R, the row of the first production line L1 (the row on one side) is the first arranging part 21P, and the row of the second production line L2 (the row on the other side) is the second arranging part 22P.

[0026] The six rolls 1 in a given transport region R are subdivided as listed below. First roll 11: Roll 1 located most downstream (downstream roll) Second roll 12: A roll 1 that contacts the upstream side of the first roll 11 Third roll 13: A roll 1 that contacts the upstream side of the second roll 12 Fourth roll 14: A roll 1 that contacts the upstream side of the third roll 13 Fifth roll 15: A roll 1 that contacts the upstream side of the fourth roll 14 Sixth roll 16: A roll 1 that contacts the fifth roll 15 on the upstream side

[0027] The rolls 11 to 16 are arranged such that their cylindrical axes 1C (see FIG. 3) are aligned on the same or substantially the same imaginary line. If the rolls 11 to 16 in a given conveying region R are the same size, only the first roll 11 is visible from the downstream side in the conveying direction (rolls 12 to 16 are hidden by the first roll 11), and only the sixth roll 16 is visible from the upstream side in the conveying direction (rolls 11 to 15 are hidden by the sixth roll 16), and they appear to be in contact with each other without any gaps when viewed from above (plan view). In other words, the rolls 11 to 16 in the given conveying region R are aligned in the same position as the rolls 1 cut from the log before being cut (i.e., the log).

[0028] The first roll 11 can be said to be the roll 1 located at the downstream end in the transport direction in a predetermined transport region R, and also the roll 1 that comes into contact with the second roll 12 on the downstream side. The internal space 1S (see Figure 3) that penetrates the core material 1T in this first roll 11 is connected to the internal space 1S (see Figure 3) of the second roll 12 on the upstream side, and is connected to the external space on the opposite side from the upstream side (the left side in Figures 1 and 2).

[0029] Here, if "x" is set to "two," "three," "four," or "five," and "y" (a Chinese numeral obtained by adding one to "x") is set to "three," "four," "five," or "six," then the internal space 1S (see Figure 3) penetrating the core material 1T in the "x" roll (12-15) is connected to the internal space 1S (see Figure 3) of the "y" roll (13-16) on the upstream side.

[0030] The sixth roll 16 is the roll 1 located most upstream (upstream end in the conveying direction) in the predetermined conveying region R. Upstream of the sixth roll 16, rolls 1 spaced apart from each other are supplied by the front part 1P. Therefore, the internal spaces 1S of the rolls 11 to 16 arranged in a predetermined conveying region R are connected to each other, and the side opposite the upstream side of the internal space 1S of the first roll 11 is open, and the upstream side of the internal space 1S of the sixth roll 16 is also open.

[0031] The arranging part 2P illustrated here repeatedly starts and stops the transport of the rolls 11 to 16, unwinding the rolls 1 downstream. In detail, the arranging part 2P has both a pause function that temporarily stops the transport of the six rolls 1, including the first roll 11, and a restart function that resumes the transport of the six rolls, including the first roll 11, that has been temporarily stopped, and feeds them in turn to the transition part 5P downstream of the predetermined transport region R.

[0032] This arrangement part 2P is provided with a conveyor 20 that has both the pause function and the restart function. This conveyor 20 is a transport mechanism that clamps at least some of the multiple rolls 1 in a predetermined transport area R to start or stop transport. Figures 1 and 2 show an example of a conveyor 20 that clamps a fourth roll 14, a fifth roll 15, and a sixth roll 16 (three rolls 1) located upstream in the predetermined transport area R from above and below.

[0033] A guide 21 for guiding the transport of the first roll 11, the second roll 12, and the third roll 13 in a predetermined transport region R is provided downstream of the conveyor 20. The portion of the conveyor 20 that clamps the roll 1 from below and the guide 21 are the portions where the roll 1 is placed, and are set at the same vertical position as the position where the roll 1 is placed on the conveyor 10 of the front part 1P.

[0034] As an example of the operation of the conveyor 20, the three rolls 14 to 16 are transported downstream by a distance equal to the dimension of the roll 1 in the direction along the cylindrical axis 1C (in other words, the dimension of one roll 1 extending along the transport direction in a specified transport area R), and then the same transport operation is resumed again after a specified transport stop period has elapsed, and this process is repeated. By carrying out intermittent conveyance in this manner (intermittent stops of conveyance), the three rolls 14-16 sandwiched in the conveyor 20 are unwound one by one toward the downstream side, and the rolls 11-13 upstream of these rolls 14-16 are pushed out one by one from the predetermined conveyance region R. Then, the first roll 11 is fed in turn from the predetermined conveyance region R to the transition part 5P. At the same time, the roll 1 supplied from the previous part 1P is sandwiched in the conveyor 20 at the most upstream side of the predetermined conveyance region R as the sixth roll 16. In this way, the six rolls 1 are unwound one by one in turn in a first-in, first-out manner.

[0035] ==Additional Part== The addition part 3P is a part that sprays and sprays the flavoring material from the downstream side (opposite the upstream side) onto the first roll 11 of the six rolls 11 to 16 arranged by the arrangement part 2P. This addition part 3P does not spray fragrance when the rolls 11 to 16 are being transported by the conveyor 20 of the arrangement part 2P, but sprays fragrance onto the inner surface 1F of the first roll 11 (see Figure 3) when transportation by the conveyor 20 is stopped.

[0036] The addition part 3P is provided with a first addition part 31P that sprays flavor onto the first rolls 11 arranged in the first arrangement part 21P, and a second addition part 32P that sprays flavor onto the first rolls 11 arranged in the second arrangement part 22P. These addition parts 31P, 32P are provided with addition modules 31, 32 as devices that add flavor by intermittent spraying as described above. The timing of intermittent spraying of the addition modules 31 and 32 is controlled based on a control signal for the conveyor 20 and a detection signal from an appropriate sensor (not shown).

[0037] The first dosing part 31P is provided with a first dosing module 31 that sprays the flavoring from one side in the width direction (the upper side in FIG. 2). The second dosing part 32P is provided with a second dosing module 32 that sprays the flavoring from the other side in the width direction (the lower side in FIG. 2). Both the additive modules 31 and 32 are arranged on the opposite side from the upstream side (left side in FIGS. 1 and 2) of the rolls 1 arranged in a predetermined conveying region R, with the first additive module 31 arranged on one side in the width direction and the second additive module 32 arranged on the other side in the width direction. The additive modules 31 and 32 are arranged so as to be spaced apart from each other in the width direction and are equipped with known devices capable of spraying a fragrance, such as spray guns and injectors. In addition, the area in the addition part 3P where the fragrance is sprayed from the addition modules 31, 32 onto the inner surface 1F of the first roll 11 is set in an area that does not intersect with the extension direction of the conveyor 20 in the arrangement part 2P or a plane extending this extension direction.

[0038] ==Dust collection part== The dust collecting part 4P is a part that absorbs the scattered aromatic material among the aromatic materials sprayed onto the inner peripheral surface 1F of the roll 1 (see FIG. 3) by the adding part 3P. In this embodiment, the following two types of dust collecting parts 4U and 4D are taken as examples. Downstream dust collection part 4D: Dust collection part 4P downstream of the designated transport area R Upstream dust collection part 4U: Dust collection part 4P upstream of the designated transport area R

[0039] The downstream dust collection part 4D absorbs the fragrance that is sprayed onto the inner peripheral surface 1F of the first roll 11 by the addition part 3P and that has diffused between the source and destination of the sprayed fragrance. The upstream dust collection part 4U absorbs the fragrance that has escaped upstream from the internal space 1S of the six rolls 11 to 16 upstream of the predetermined transport region R. These dust collection parts 4U and 4D use known dust collection devices such as a suction blower or a suction fan that sucks up and processes the fragrance.

[0040] ==Transition Part== The transition part 5P is a part that transfers the first roll 11 unwound from the arrangement part 2P to the rear part 6P. The transition part 5P is provided with a guide 50 that drops the first roll 11 unwound from the arrangement part 2P and transitions it to the subsequent part 6P.

[0041] The illustrated guide 50 extends in an arc shape with a quarter circumference in side view. Specifically, the guide 50 has an upstream end that is adjacent to the downstream end of the guide 21 provided in the arrangement part 2P and extends in the vertical direction, and a downstream end that is adjacent to the upstream end of the conveyor 60 provided in the rear part 6P and faces horizontally. This guide 50 can also be said to be a chute that drops the downstream roll 11, whose tubular axis 1C is aligned horizontally, in a specified conveying area R with the tubular axis 1C aligned vertically, and then returns it to a position with the tubular axis 1C aligned horizontally, transporting it to the conveyor 60 of the subsequent part 6P. In addition, a blower (not shown) is also provided to blow air onto the roll 1 being moved along the guide 50. By providing an air table type drop guide using a blower as the guide 50 of the transition part 5P in this way, it is possible to prevent contamination such as fragrances from adhering to the guide 50, and the gliding properties of the roll 1 are ensured, which contributes to the smooth transfer of the roll 1 to the subsequent part 6P.

[0042] [2. Methodology] The method for adding a fragrance is a method for adding a fragrance using the fragrance adding device described above. In this flavoring agent addition method, the above-described parts of the flavoring agent addition device perform processes in which the word "part" in the name is replaced with "process." For example, the arranging process is performed in arranging part 2P, the adding process is performed in adding part 3P, and the dust collecting process is performed in dust collecting part 4P. In the dust collecting process, the downstream dust collecting process is performed in downstream dust collecting part 4D, and the upstream dust collecting process is performed in upstream dust collecting part 4U. In the flavoring agent addition method of this embodiment, as shown in Table 1 below, the addition step and dust collection step are carried out in parallel with the arrangement step in which the pause step and restart step are carried out.

[0043] [Table 1]

[0044] In the arranging step, the six rolls 11 to 16 are arranged in a predetermined conveying region R along the conveying direction in a state where they are in contact with each other and the cylindrical axes 1C of the rolls 1 are oriented along the conveying direction. In this arranging step, the rolls are arranged so that the internal space 1S of the first roll 11 communicates with the internal space 1S of the second roll 12 on the upstream side thereof, and the internal space 1S of the first roll 11 communicates with the external space on the opposite side to the upstream side thereof.

[0045] In addition, this arranging process is carried out in parallel with a first arranging process in which six rolls 11 to 16 are arranged in a row on the first production line L1 and a second arranging process in which six rolls 11 to 16 are arranged in a row on the second production line L2. In the arrangement process of this embodiment, while the six rolls 11 to 16 are arranged as described above, a pause process in which the transport of the first roll 11 is temporarily stopped and a restart process in which the transport of the first roll 11, whose transport has been temporarily stopped by the pause process, is resumed and the first roll 11 is fed in sequence downstream of the specified transport region R are alternately carried out.

[0046] In the adding step, the flavoring is sprayed from the downstream side (opposite the upstream side) onto the inner peripheral surface 1F of the first roll 11 of the six rolls 11 to 16 arranged in the arranging step. In addition, this addition process is carried out in parallel with a first addition process in which fragrance is sprayed from one side in the width direction onto the inner surface 1F of the first roll 11 of the six rolls 11 to 16 arranged in the first arrangement process, and a second addition process in which fragrance is sprayed from the other side in the width direction onto the inner surface 1F of the first roll 11 of the six rolls 11 to 16 arranged in the second arrangement process.

[0047] In this addition process, spraying of the fragrance onto the first roll 11, whose conveyance has been resumed by the restart process, is stopped, and the fragrance is sprayed onto the inner peripheral surface 1F of the first roll 11, whose conveyance has been temporarily stopped by the pause process. In other words, the addition process is not performed during the restart process of the arrangement process, and is performed only during the pause process of the arrangement process.

[0048] The dust collecting step absorbs the scattered fragrance out of the fragrance sprayed onto the inner circumferential surface 1F of the first roll 11 in the adding step. In the downstream dust collection step of the dust collection step, the fragrance that is sprayed onto the inner peripheral surface 1F of the first roll 11 in the adding step and that has diffused between the spray source and the inner peripheral surface 1F of the first roll 11 is absorbed.

[0049] In the upstream dust collection process of the dust collection process, the fragrance that has escaped upstream from the internal space 1S of the six rolls 11 to 16 upstream of the specified conveying area R is sucked out of the fragrance sprayed onto the inner surface 1F of the first roll 11 in the addition process. In addition, a transition process not listed in Table 1 is performed by the transition part 5P, in which the first roll 11 arranged in the arrangement process and to which the flavoring agent has been added in the addition process is transferred to the subsequent part 6P, where subsequent processes such as inspection and packaging are performed. The dust collection process, the transfer process, and the post-process are carried out in parallel on the production lines L1 and L2, as are the arranging process and the adding process.

[0050] [3. Actions and Effects] Since this embodiment has the above-described configuration, it is possible to obtain the following actions and effects. (1) According to this flavoring agent addition method, the six rolls 11 to 16 are arranged in contact with each other with the cylindrical shafts 1C aligned along the conveyance direction in the arranging step, and then the flavoring agent is sprayed from the downstream side onto the inner peripheral surface 1F of the first roll 11 in the adding step. Therefore, even if the flavoring agent sprayed onto the inner peripheral surface 1F of the first roll 11 drifts upstream, the flavoring agent drifts only in the internal space 1S of the rolls 12 to 16 upstream of the first roll 11, and scattering to the outside is suppressed. Therefore, scattering of the flavoring material added to the rolls 11 to 16 can be suppressed.

[0051] In turn, this can suppress deterioration of the production lines L1 and L2, such as the conveying equipment and sensors provided around the rolls 11 to 16 onto which the fragrance is sprayed. Furthermore, the fragrance that drifts upstream relative to the first roll 11 contributes to the reliable addition of fragrance to the inner surfaces 1F of the rolls 12 to 16 arranged upstream relative to the first roll 11, thereby helping to reduce the amount of fragrance sprayed.

[0052] (2) According to the first addition process and the second addition process, the first addition process is carried out in parallel, in which fragrance is sprayed from one side in the width direction onto the inner surface 1F of the first roll 11 arranged by the first arrangement process, and the second addition process is carried out in parallel, in which fragrance is sprayed from the other side in the width direction onto the inner surface 1F of the first roll 11 arranged by the second arrangement process. Therefore, the fragrance can be sprayed onto the six rolls 11 to 16 that are transported along the two parallel production lines L1 and L2.

[0053] Furthermore, the source of spraying the flavoring agent (i.e., the addition modules 31, 32) can be positioned offset outward in the width direction relative to a region virtually extending the cylindrical axes 1C of the rolls 11-16 in the predetermined conveying region R on the first production line L1 toward the opposite side from the upstream side. In other words, the flavoring agent spraying region can be set in a region inclined relative to a linear region virtually extending the cylindrical axes 1C of the rolls 11-16 in the predetermined conveying region R toward the opposite side from the upstream side. Furthermore, if the equipment for the production lines L1 and L2 is located on the opposite side of the upstream side of the six rolls 11 to 16 arranged in the arrangement process, the addition modules 31 and 32 that spray the fragrance can be placed to avoid interference with this equipment. This contributes to improving the degree of freedom in the layout of the manufacturing lines L1 and L2.

[0054] (3) According to the addition process of this embodiment, spraying of the fragrance onto the first roll 11 whose conveyance has been resumed in the restart process is stopped, and spraying of the fragrance onto the inner peripheral surface 1F of the first roll 11 whose conveyance has been temporarily stopped in the pause process is performed. By spraying the fragrance intermittently in this manner (intermittently stopping the spraying of the fragrance), the amount of fragrance used can be reduced compared to spraying the fragrance continuously. Furthermore, adhesion of the fragrance to the wound material 1W is suppressed, and a decrease in the marketability of the roll due to adhesion of the fragrance to the material 1W can also be suppressed.

[0055] (4) The downstream dust collection process can absorb the fragrance that is sprayed onto the inner surface 1F of the downstream roll 11 in the addition process and that has diffused between the spray source and the spray destination inner surface 1F. The upstream dust collection process can absorb the fragrance that has escaped upstream from the internal space 1S of the six rolls 11-16 in the addition process. In this way, the fragrance that is scattered among the fragrances sprayed in the dust collection process can be absorbed, thereby reliably suppressing deterioration of the production lines L1 and L2, such as the equipment and sensors installed around the rolls 11-16 onto which the fragrances are sprayed.

[0056] (6) In addition, the area where the flavoring is sprayed from the additive modules 31, 32 onto the inner peripheral surface 1F of the first roll 11 is set to an area that does not intersect with the extension direction of the conveyor 20 of the arrangement part 2P or a plane extending from this extension direction. Therefore, a band-like belt with guaranteed durability can be used compared to a string-like belt (so-called round belt) that can be used when spraying the flavoring into an area that intersects with the area where the conveyor 20 extends. (7) The fragrance addition device can also provide the same effects and benefits as the fragrance addition method.

[0057] [II. Modifications] The above-described embodiment is merely an example, and is not intended to exclude various modifications and application of techniques not explicitly stated in this embodiment. Each configuration of this embodiment can be modified and implemented in various ways without departing from the spirit of the invention. Furthermore, it is possible to select and combine as needed.

[0058] For example, the number of rolls extruded in the restart step in the arrangement step is not limited to one, but may be two or more, as long as it does not exceed the upper limit number of rolls that can be arranged in a predetermined conveyance area (the number illustrated in one embodiment is six). When multiple rolls are extruded in this manner in the restart step, flavoring is added to the number of rolls extruded during the pause step immediately before the restart step.

[0059] Furthermore, the arranging step is not limited to a form in which a pause step is performed, but may be a form in which "n" rolls are continuously transported in a predetermined transport area. In this case, the steps of temporarily stopping and restarting the transport of rolls in the predetermined transport area can be simplified, and the configuration of the device or equipment that performs the pause step and restart step can also be simplified. When the rolls are transported continuously in a predetermined transport area as described above, it is preferable to stop spraying the fragrance intermittently.

[0060] Here, we will cite a specific example in which rolls are continuously transported at a constant speed in a predetermined transport area. In this case, since the rolls are transported at a constant speed, downstream rolls are pushed out one by one from the predetermined transport area. Furthermore, even when the fragrance spraying is being performed intermittently or when it is stopped intermittently, at least "n-1" rolls are always arranged in the predetermined transport area.

[0061] Immediately after the downstream roll is pushed out of the designated transport area, the system is in a first state where "n-1" rolls are arranged in the designated transport area. After the first state, a second state (i.e., a state where "n" rolls are arranged) occurs where one roll supplied from the upstream side pushes "n-1" rolls downstream and moves a new downstream roll downstream. The system then transitions back to the first state.

[0062] The first state includes a state in which the downstream roll is dropping from the predetermined transport area to the guide, and also includes a state in which the downstream roll is not yet pushed downstream (stopped) in the predetermined transport area, whereas the second state can be said to be a state in which the downstream roll is being pushed downstream and moving. In the above-described configuration in which the arrangement state alternates between the first state and the second state, it is preferable to stop spraying the fragrance in the first state and to spray the fragrance in the second state. That is, it is preferable to stop spraying the fragrance in the first state in which the downstream roll is stopped or has fallen into the guide, and it is preferable to spray the fragrance in the second state in which the downstream roll is pushed downstream and moving.

[0063] In this way, when the rolls are continuously transported at a constant speed during the arrangement process and the fragrance is sprayed intermittently during the addition process, the configuration of the devices and equipment involved in transporting the rolls is simplified, while preventing the fragrance from adhering to the materials wound on the rolls, allowing the fragrance to be added appropriately. Furthermore, when the rolls are transported at a constant speed in the arrangement process as described above while the fragrance is sprayed intermittently in the addition process, the length of the period during which the fragrance can be sprayed onto the inner surface of the roll is determined by the arrangement of the addition module. If fragrance is sprayed from a first-arranged addition module that overlaps a linear area formed by virtually extending the cylindrical axis of a roll in a predetermined conveying area toward the opposite side from the upstream side, while the downstream roll falling into the guide interferes with the fragrance spraying area, if the fragrance is sprayed, the fragrance will be added to the material rather than the inner surface of the roll. Therefore, until the downstream roll has completely fallen into the guide (until the fragrance spraying area and the downstream roll no longer interfere), the fragrance cannot be properly sprayed onto the inner periphery of the new downstream roll.

[0064] On the other hand, with the second-positioned addition module, in which the fragrance spraying area is set in an inclined area, not just outside the width direction, relative to the linear area that is a virtual extension of the roll's cylindrical axis 1C in the specified conveying area toward the opposite side from the upstream side, the interference area between the downstream roll falling into the guide and the fragrance spraying area from the addition module is reduced. Therefore, the fragrance can be properly sprayed onto the inner surface of the new downstream roll before the downstream roll completely falls into the guide. Therefore, the start of the period in which the fragrant material can be appropriately sprayed can be brought forward by the second-placed addition module compared to the first-placed addition module, thereby ensuring a period in which the fragrant material can be appropriately sprayed. In other words, since the second-placed addition module ensures a period in which the fragrant material can be sprayed, the conveying speed of the rolls in the specified conveying area can be increased, thereby improving the processing speed of the product.

[0065] However, the first-placed addition module may also be used. In this case, it is preferable to employ an addition module that can spray the fragrance in a short period of time, which is effective when there are layout constraints on the placement of the addition module. Furthermore, the addition process is not limited to a form in which the spraying of the fragrance is stopped intermittently, and the fragrance may be sprayed continuously. In this case, the process of spraying the fragrance in the addition process can be simplified, and the configuration of the addition module that performs the addition process can also be simplified.

[0066] In addition, the manufacturing lines are not limited to a configuration in which two lines are arranged in parallel, but may be a configuration in which three or more lines are arranged in parallel, or a configuration in which only a single manufacturing line is arranged. It is to be noted that either the downstream dust collection step or the upstream dust collection step or both may be omitted, which simplifies the steps of the flavoring agent addition method and the configuration of the flavoring agent addition device for carrying out this method. [Explanation of symbols]

[0067] 1 roll 10 Conveyor 11 First roll (downstream roll) 12 Second Roll 13 Third Roll 14 Fourth Roll 15 Fifth Roll 16 Sixth roll (upstream roll) 1C cylinder shaft 1F inner surface 1P First Part 1S interior space 1T core material 1W Materials 20 Conveyor 21 Guide 21P First Array Part 22P Second Array Part 2P Array Part 3P Addition Part 31 First Addition Module 31P First Addition Part 32 Second Addition Module 32P Second Addition Part 3P Addition Part 41P First dust collection part 42P Second dust collection part 4D downstream dust collection part 4U Upstream dust collection part 4P dust collection part 50 Guide 5P Transition Guide 60 Conveyor 6P later part R Predetermined transport area L production line L1 First production line L2 Second production line

Claims

1. A method for adding a flavoring agent to an inner surface of a core material in a roll conveyance path, the core material being a cylindrical core material having a cylindrical internal space passing therethrough and a strip-shaped material wound around a cylindrical axis of the core material, the method comprising: an arranging step of arranging the plurality of rolls in a predetermined conveying region along the conveying direction in a state where the rolls are in contact with each other and the cylindrical axes of the rolls are oriented along the conveying direction, and arranging the rolls such that the internal space of a downstream roll, which is a roll located at the downstream end in the conveying region in the conveying direction among the plurality of rolls, communicates with the internal space of the roll adjacent to the downstream roll on the upstream side of the downstream roll on the upstream side, and the side opposite to the upstream side of the internal space of the downstream roll communicates with an external space; an adding step of spraying the fragrance from the external space on the opposite side to the upstream side onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged in the arranging step. A method for adding a fragrance.

2. the arranging step includes a pause step of temporarily stopping the conveyance of the downstream roll, and a restart step of resuming the conveyance of the downstream roll, the conveyance of which has been temporarily stopped by the pause step, and feeding the downstream roll in turn downstream of the conveying region in the conveying direction, The adding step stops spraying the flavoring material onto the downstream roll whose conveyance has been resumed by the restarting step, and sprays the flavoring material onto the inner circumferential surface of the downstream roll whose conveyance has been temporarily stopped by the pausing step.

2. The method of claim 1 .

3. a dust collection step for absorbing the scattered fragrance from the fragrance sprayed onto the inner circumferential surface in the adding step; 3. The method for adding a flavoring agent according to claim 1 or 2.

4. The dust collection step includes a downstream dust collection step of absorbing the fragrance that is sprayed onto the inner circumferential surface in the adding step and that has diffused between the spray source and the inner circumferential surface.

4. The method of claim 3, wherein the flavoring agent is a volatile organic compound.

5. The dust collection step includes an upstream dust collection step of absorbing the aromatic material that has escaped from the internal spaces of the rolls to the upstream side of the conveying region, among the aromatic material sprayed onto the inner peripheral surface in the adding step.

4. The method of claim 3, wherein the flavoring agent is a volatile organic compound.

6. A fragrance addition device that adds a fragrance to an inner peripheral surface of a core material in a transport path of a roll in which a strip-shaped material is wound around a cylindrical axis of a cylindrical core material that has a columnar internal space passing through it, an arrangement part in which a plurality of the rolls are arranged in a predetermined conveying region along the conveying direction in a state where they are in contact with each other and the cylindrical axes of the rolls are oriented along the conveying direction, and the rolls are arranged such that the internal space of a downstream roll, which is a roll located at the downstream end in the conveying region in the conveying direction among the plurality of rolls, is in communication with the internal space of the roll adjacent to the downstream roll on the upstream side of the downstream roll on the upstream side in the conveying direction, and the side opposite to the upstream side of the internal space of the downstream roll is in communication with an external space; an adding part that sprays the fragrance from the external space opposite to the upstream side onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the arranging part; A fragrance adding device characterized by:

7. the arrangement part includes a first arrangement part that arranges the plurality of rolls in one of two rows aligned in a width direction that is a direction intersecting the conveying direction in a top view, and a second arrangement part that arranges the plurality of rolls in the other of the two rows, The adding part includes a first adding part that sprays the flavoring from one side in the width direction onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the first arranging part, and a second adding part that sprays the flavoring from the other side in the width direction onto the inner circumferential surface of the downstream roll among the plurality of rolls arranged by the second arranging part.

7. The flavoring device of claim 6.

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